[PATCH 3/5] wined3d: Remove ARB_/EXT_TEXTURE_ENV_ADD.

[Stefan Dösinger]

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Am 2015-02-26 um 10:25 schrieb Henri Verbeet:
> Right, we actually depend on at least texture_env_combine in
> practice and that adds the ADD operation by itself. In theory we
> could perhaps use texture_env_add when texture_env_combine isn't
> available, but it doesn't seem worth it at this point.
Fwiw, the only GPU I know of that doesn't at least have
texture_env_combine is my ancient ATI Mach64 GPU. I agree that it's
not worth the effort.

The Mach64 DRM module never made it into the kernel, afaik the Mach64
DDX driver is abandoned and the the mesa parts were removed from Mesa 8.0.

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